About the Authors

David L. A. Gaveau

d.gaveau@cgiar.org

Affiliation Center for International Forestry Research, Bogor, Indonesia

Sean Sloan

Affiliation Centre for Tropical Environmental and Sustainability Science, School of Marine and Tropical Biology, James Cook University, Cairns, QLD, Australia

Elis Molidena

Affiliation Center for International Forestry Research, Bogor, Indonesia

Husna Yaen

Affiliation Center for International Forestry Research, Bogor, Indonesia

Doug Sheil

Affiliations Center for International Forestry Research, Bogor, Indonesia, Department of Ecology and Natural Resource Management (INA), Norwegian University of Life Science (NMBU), Ås, Norway

Nicola K. Abram

Affiliations Durrell Institute of Conservation and Ecology, University of Kent, Canterbury, Kent, United Kingdom, Borneo Futures project, People and Nature Consulting International, Ciputat, Jakarta, Indonesia

Marc Ancrenaz

Affiliations Borneo Futures project, People and Nature Consulting International, Ciputat, Jakarta, Indonesia, Sabah Wildlife Department, Kota Kinabalu, Sabah, Malaysia, HUTAN, Kinabatangan Orang-utan Conservation Programme, Kota Kinabalu, Sabah, Malaysia, North England Zoological Society, Chester Zoo, Chester, United Kingdom

Robert Nasi

Affiliation Center for International Forestry Research, Bogor, Indonesia

Marcela Quinones

Affiliation SarVision, Wageningen, The Netherlands

Niels Wielaard

Affiliation SarVision, Wageningen, The Netherlands

Erik Meijaard

Affiliations Center for International Forestry Research, Bogor, Indonesia, Borneo Futures project, People and Nature Consulting International, Ciputat, Jakarta, Indonesia, School of Biological Sciences, University of Queensland, Brisbane, QLD, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DG SS. Performed the experiments: DG SS. Analyzed the data: DG SS E. Molidena HH. Contributed reagents/materials/analysis tools: NW NA MA MQ. Wrote the paper: DG SS DS RN E. Meijaard.